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Is it weed or new healthy grass growing?

joshuadipal95Elj5s_joshuadipal95Elj5s_ Posts: 6
in Problem solving
I'm new at taking care of a lawn and I hope you can help me know what I should do about the following. About a week ago I laid this sod on both sides of my parking space and now I've started noticing this other kind of "sprouts" (you can see they're taller and look different than the rest of the grass. My first thought was that "new" grass was getting born and growing but then I thought it looked really different than the rest and it grew much faster.

My question is simple: Should I let this different-looking weed be and grow along with the rest of the grass or should I plug it out before it becomes a real threat to the rest? Hope I have explained myself well. 


Thank you in advance,
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Posts

  • GardenerSuzeGardenerSuze Posts: 5,692
    They look like Carex seedlings? 
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • joshuadipal95Elj5s_joshuadipal95Elj5s_ Posts: 6
    GardenerSuze said:
    They look like Carex seedlings? 
    I have looked up the term Carex and my seedlings do look very similar to that, should I pull them up or let them grow?
  • joshuadipal95Elj5s_joshuadipal95Elj5s_ Posts: 6
    GardenerSuze said:
    They look like Carex seedlings? 
    I have discovered on the web that it's actually nutsedge 
  • GardenerSuzeGardenerSuze Posts: 5,692
    edited September 2023
    @joshuadipal95Elj5s_ It does look more like a sedge to me too. They are small will they just pull out gently? It would seem that this can make nutsedge spread but I can see no other way personally 
    Are there any plants of Carex pendula in your garden or a neighbours garden? This is less likely as your grass is new but the seed of this plant is also invasive.


    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • joshuadipal95Elj5s_joshuadipal95Elj5s_ Posts: 6
    GardenerSuze said:
    @joshuadipal95Elj5s_ It does look more like a sedge to me too. They are small will they just pull out gently? It would seem that this can make nutsedge spread but I can see no other way personally 
    Are there any plants of Carex pendula in your garden or a neighbours garden? This is less likely as your grass is new but the seed of this plant is also invasive.


    Thanks for your answer, I think the problem was already in the soil I prepared before laying the new sod (I suppose the nutsedge was already there dormant), I guess I should've prepared the soil better but I did my best since I didn't know about this. I can see there are not too many of them and they can be easily pulled up. I will try this method and if the problem gets worse I'll try using some kind of herbicide that doesn't kill the St Augustine grass too. Thanks for your advice
  • joshuadipal95Elj5s_joshuadipal95Elj5s_ Posts: 6
    GardenerSuze said:
    @joshuadipal95Elj5s_ It does look more like a sedge to me too. They are small will they just pull out gently? It would seem that this can make nutsedge spread but I can see no other way personally 
    Are there any plants of Carex pendula in your garden or a neighbours garden? This is less likely as your grass is new but the seed of this plant is also invasive.


    By the way, this lawn is completely isolated since it has just wall and concrete on all sides so no risk of getting the nutsedge from a neighbor, this is why my conclusion is that is was already in the ground even before I laid down the new lawn.
  • bédébédé Posts: 3,095
    What quality lawn are you after.  Just constant close mowing might be good enough.  Sedges are likely to resist lawn weedkillrs.
     location: Surrey Hills, England, ex-woodland acidic sand.
    "Have nothing in your garden that you don't know to be useful, or believe to be beautiful."
  • GardenerSuzeGardenerSuze Posts: 5,692
    Mowing is a way of dealing with some weeds. As the turf is new I assume it's not yet ready for a mow.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • MrMowMrMow Posts: 160
    As I believe from the grass you have listed you maybe South Africa or Australia. The latter I think. 

    It maybe worth asking for advice on the Victoria greenkeepers association OZ. 

    You will have different chemicals available and will get better advice from someone that grows this variety. 

    Hope that helps. 
    I never knew retirement would be so busy. :smile:




  • GardenerSuzeGardenerSuze Posts: 5,692
    edited September 2023
    @MrMow Great to have your knowledge good to here from you.
    @joshuadipal95Elj5s_ Sorry if you have only received my limited knowledge which is from a plant perspective.

    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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